Todd,
Do you know what the original PPG and/or Dupont codes were for those interior colors? The only documented interior colors that I have in the Tech Tip are for 1949, 1953, and 1954/55.
In answer to Denny's question above, PPG can provide modern codes (called offsets) for most of the old colors/codes. Information on how to obtain the modern PPG codes/offsets is provided at the bottom of the Tech Tip.
Tim